Improvement in fasteners for meeting-rails of sashes



. R. LEE. Fastener for Meeting-Rails of Sashes.

No. 221,967. Patented Nov. 25, I879.

UNITED STATES PATENTOFFICE ROBERT LEE, OF CINCINNATI, OHIO.

IMPROVEMENT IN FASTENERS FORMEETlNG-RAILS OF SASHES.

Specification forming part of Letters Patent No. 221,967, dated November 25, 1879 application filed May 8, 187).

, To all whom it may concern:

Be it known that I, ROBERT LEE, of Oincinna-ti, Hamilton county, Ohio, have invented a new and useful Fastening for the Meeting- Rails of Sashes, of which the following is a specification.

My object in this invention is to afford. at a cheap cost, a fastening for the meeting-rails of sashes of completely burglar-proof character, and such as, when released from the locked condition, automatically assumes'a completely- ,opcn positionout of possible contact with the jupper sash.

-My invention consists in the combination, with a hook or catch on the lower rail of the upper sash, of a swinging latch pivoted to a base-plate secured to the upper rail, said latch being recessed at its mid-length on its under side to receive a helical spring, and a rocking tumblerattached to said latch, and having 011 its under side a T-formed projection adapted to engage in a correspondingly-formed indentationor notch in the baseplate. r

, In the accompanying drawings, Figure 1 is a side elevation, and Fig. 2 a vertical section, of my fastener in its locked condition. Fig. 3 is a perspective view of the same in a position intermediate between that of lockin g and unlocking. Fig. 4 is a perspective view of my self-lockin g tumbler.

A B may represent parts of the meetingrails of an ordinary pair of window-sashes. C may represent a common form of catch for attachment to the upper sash, A. Dtrepresents a plate, which is secured to the meeting-rail of the lower sash by means of wood-screws.

This plate has in-its front edge a notch, E, in

the form of an inverted T, and to the right and rear of that an orifice, F, in rear of which is a stump or abrupt elevation, G. I

Secured to and centered upon plate D by pivot H is a swinging bar or button, I, having an upturned lip, J, which, in the locked condition of the fastening, engages behind the catch 0 in the manner familiar to users of this class of sash-fastenin gs. I h

I Thecentral part of the button I, surrounding the pivot H, ischambered at i to receive a lug, L, that projects from the interior of the chamber My said button I also, for the most part, in-

closes a peculiarly-formed self-locking tumbler, M, whose rear extremity, N, has the ring like or annular form clearly shown in Fig. 4. Projecting laterally from ring N are gudgeons O 0, which occupy corresponding notches in the under edge of the button I. The front extremity of tumbler M takes the form of a knob, P, which serves the purpose of a bandle, by means of which'the fastener is manipulated.

Projectingupward from the tumbler M is a spur, Q, which, occupying a notch, i, in the button I, obliges the latter to take part in any horizontal swing imparted to the tumbler M. Depending rigidly from the tumbler M is an inverted-Tformed tooth, R, whose dimensions are such as to enable it to drop easily into the correspondingly-formed notch E in the plate I), and to become securely locked therein in consequence of its projection r engaging under the corresponding projection c of the plate.

In addition to the lateral indentation e under the projection c, a vertical indentation, e,

may be provided in rear of the projection e, to receive a corresponding vertical projection, r, on the tumbler.

An additional security is provided in the projection c, which, on the tumbler being forced to the left, as is sometimes attempted to be done forclandestine purposes, engages un' der projection r, so as to still remain locked.

This button, although impossible to dislodge by any person operating from without,

vention may be varied in non-essential partic ulars. For example, the orifice F may be omitted, as also may be the vertical indentation (Wand vertical projectlon r.

I am aware that it is not new to construct Windowand door buttons with a swinging latch length for helical spring K and pivot H, and therocking tumbler M, whose T-formed propivoted to the upper rail, and having a hinged jection R occupies, when looked, a correspondextensi on adapted to drop into a recess or rein g indentation, E, in the front edge of the cesses in the base-plate. Such, therefore, I plate D, substantially as set forth.

do not broadly claim but What I claim as new and of my invention 1s The combination, with a suitable hook or catch, G, upon the upper sash, of the swinging' latch or button I, chambered at its mid- In testimony of which invention I hereunto set my hand.

ROBERT LEE.

Attest Gno. H. KNIGHT, W ALTER ALLEN. 

